Automatic stop



F-. MALOCSAY.

AUTOMATIC STOP.

APPLICATION FILED AUG. 19, I916.

Patented July 5, 1921. 1' i 2 SHEETS-SHEET I F. MALOCSAY.

AUTOMATIC STOP.

APPLICATION FILED AUGJB, 1916. Q 1,383,655 1 Patented July 5, 1921.

2 $HEETSSHEET 2- I v Z5 Z9 0 JwuQ wroz FRANK MALOCSAY, or' new YORK, n. Y., ASSIGNOR r0 sononarnoivodnarrr con PORATION, A CORPORATION OE NEW 'YOBK.

AUTOIVIATIC STOP.

Specification of Letters Patent.

Patented July 5, rear.

Application filed August 19,1918. Serial No. 115,822.

vBronx and State of New York, have invented a new and useful improvement in Automatic Stops, of which the following is a specification.

My invention relates to talking machines,

and more particularly to that type of such devices wherein is employed a rotating disk in the face of which a spiral recordgroove is traced. With such record groove, the stylus or reproducer is engaged, and the rotation of the disk will feed the stylus from the outer to the inner end ofthe groove or vice versa, as the case may be.

The object ofniy invention is to produce a device which will automatically bring the record disk to a stand still when the end of the record has been reached by the stylus.

A further object is to so construct the device that it will be reversible, that is to say, one which will operate in connection with machines wherein the stylus is fed from the periphery of the disk toward the center, or with one in which the stylus is fed from the center outward.

A further object is to produce a device of the character described, which will be simple and cheap of construction, positive and automatic in operation, and not likely to get out of order. v

A still further object is to produce a device which will automatically adjust itself to operate on disks of different diameter.

These and further objects will more fully appear in the following specification and accompanying drawings considered together or separately.

I have illustrated my invention in the accompanying drawings, in which the like parts in ally of the figures are designated by similar reference characters, andv in which,-

Figure 1 isa plan view of atalking ma chine provided with my invention, the turntable and record disk being broken away, the parts being in position to operate on a record, the feed of which is from the outside toward the center;

Fig. 2 is a section on the line 22 of Fig. 1;

Fig. 3 is a view similar to Fig. 1, but

with the parts in position to operate on a machine in which the feed is from the center of the record disk outward;

l 1g. a is a detail plan view, 011 an enlarged scale, of the stop mechanism; and

Fig. 5 is a detail. sectional 'iew of thecon nection between the operating lever and the tone-arm. V

In the drawings, 1 designates a talking machine cabinetprovided with a shelf or top 2, to the under side ofwhich is secured a motor of any approved type (not shown). The drive shaft 3 of the motor projects through the top 2, and carries the usual turn-table 4, on-which is mounted, a record disk 5 carrying a spiral record groove.

Carried on the top 2, to one side of the turn-table, is a hollow tone-arm 6, which carries at its free end a reproducer 7 pro vided with a stylus or needle 8. The inner end of the tone-arm communicates with a horn or diffuser (not shown), whichis located below the top.. The inner end of the tone-arm is seated in a collar 9, in such a manner as to allow free horizontal movement of the tone-arm. The connection of the tone-arm with the collar provides for slight lost motion, so that the tone-arm may have a slight rocking movement vertically, relatively to the collar, for a purpose to be hereinafter described. a

.Bigidly secured to the down turned end of the tone-arm, in proximity to the collar 9, is a clip 10, having a projecting portion, to which is pivoted a lever 11. The lever is connected to the projecting end of the clip by means of a bolt 11 which passes through both the clip and the end of the lever, and is provided. with a milled nut by means of which the lever will be held in frictional engagement with the clip, in such a manner that the lever will ordinarily move with the tone-arm, but when it contacts with an immovable object the frictional engagement will permitslipping, so that thelever may come to rest. and the tone-arm continue. its movement. The free end of the lever 11 is provided with a roundedportion 12, and a hook 155. Stops let and 15 are carried by the top 2 in such positions as to arrest the movement of the lever before the tone-arm reaches the limit of its movement in each direction.

Mounted on the top 2, and preferably below the turn-table, is a bed-plate 16, having bearings 17 and 18, one at each end thereof. Carried in the bearings is a sliding rod 19. The rod is provided with a stop 20, to limit its movement in one direction, and a stop 21 to limit its movement in the opposite direction.

I Pivoted to the bed-plate 16, midway between the bearings 17 and 18, is a bell-crank le er 22, one arm of which is provided with a slot 23 for engagement with a pin 24, on the rod 19. The other arm of the bell-crank is provided with a down-turned lip 246.

Mounted on the top 2, near the periphery of the turn-table 1, is a bell-crank lever 25, one arm of which carries a brake shoe 26, adapted to engage the turn-table and arrest the rotation thereof, and of the shaft 3 and the motor. The other arm of the bell-crank 25 is shaped to form a handle by means of which the brake may be manually operated. A spring tends to normally hold the brake shoe in engagement with the turntable.

Pivoted on the top 2, adjacent to the pivot of the bell-crank 25, is a lever 27, one arm of which engages one end of the rod 19. The other arm 28 of the lever 27 is provided with a notch 29, for engagement with a stop 30, on the bell-crank lever 25. A light spring 31 tends to hold the arm 28 of the lever 27 against the stop 30.

The operation of my improved stop is as follows:

A disk record which is to be played by the stylus travelingfrom the outside groove toward the center, is placed upon the turntable.

The tone-arnrG and lever 11 are in the position shown in Fig. 1. The reproducer 7 is swung upward so that the stylus will not engage the record surface. The tonearm is swung across the record until the stylus is in position to engage the inner end of the record groove. Before the tone-arm reaches the position just described, the lever 11 will contact with the bearing 18 and its movement arrested, and, by reason of the frictional engagement, of the lever with the tone-arm. the latter may continue its movement until the stylus is over the innermost end of the record groove. The tone-arm is now swung back until the stylus is in position to engage the outer convolution of the record groove.

The lever 25 is manually operated to release the brake shoe from engagement with the turn-table, which will be rotated by the motor. When the brake is released the arm 28 of the lever 27 will be forced by the spring 31 to follow the bell-crank 25. This will move the rod 19 until its end projects beyond the bearing 18, the notch 29 will engage the stop 30, and the brake shoe will be locked in position away from the turntable.

The tone-arm is now swung toward the record disk, and the stylus is engaged with the record groove, and the tone-arm will be fed across the record surface by reason of such engagement. When the stylus reaches the inner end of the record groove, the end of the lever 11 will engage the projecting end of the rod 19 and, as the frictional engagement of the lever with the stop is strong enough to overcome the spring 31, the rod will be moved toward the lever 25, the arm 28 of the lever 27 will be released from the stop 30, and the spring 32 will engage the brake shoe with the turn-table, and

arrest the movement of the motor.

The stylus is now raised from the record groove, the tone-arm is swung back farther than the position shown in Fig. 1, so that the lever 11 will engage the stop 1%, and its movement arrested before the tone-arm reaches its farthest position. This will bring the lever in such a position that it will surely engage the end of the rod 19 before the stylus reaches the inner end of the record groove on a new disk irrespective of its distance from the center of the disk. When the tone-arm is swung to the position shown in F 1, the device will be in position to operate as before.

TV hen it is desired to play a record in which the stylus is moved by engagement with the record groove from near the center of the disk outward, the tone-arm is in the position shown in Fig. 1. It is now swung over the record until after the lever 11 is arrested inits movement by the stop 15, care being taken to tilt the tone-arm and lever, so that the latter will pass over the bearing 18. The tone-arm is now swung back toward the position shown in 1 until the stylus is over the outermost end of the record groove. Before the tone-arm reaches the last mentioned position, the lever 11 will have come into engagement with the lever 22, and its movement arrested as in the case of the rod 19. The brake is released as before, and the turn-table and record will rotate. The tone-arm is now swung inward, and the stylus placed in the inner end of the record groove. The rotation of the turn-table will feed the tonearm outward and when the stylus reaches the outer end of the record groove, the end of the lever 11 will engage the lip 2 1 on the'bell crank 22, the rod 19 will be depressed, and the brake applied as before.

In accordance with the provisions of the patent statute, I have described the principle of my invention together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention can be carried out in other ways Without departing from the spirit of my invention. r

Having now described my invention, what I claim as newand desire to secure by Letters Patent of the United States, is as fol lows l. The combination with a reproducer and a record carrier having relative movement for sound reproduction, of means, including a settable element pivoted to the tone arm eccentrically of the axis thereof, for automatically causing such movement to cease when the reproducer reaches any predetermined point on the record, said settable element being automatically set at all times wholly upon movement of the ,reproducer. V

2. The combination with a reproducer and a record carrier, the two having relative movement for sound reproduction, of means including a settable element pivoted to the tone arm eccentrically of the axis thereof, for automatically causing such movement to cease when the reproducer reaches any predetermined point on the record, said settable element being automatically set to cause said means to become operative when the reproducer reaches any predetermined point on the record by a movement of the reprodueer first in one direction and then in the opposite direction to said predetermined point.

3. in a device of the character described, a rotating turn-table, a grooved record disk carried by the turn-table, a brake, a pivoted member, a stylus carried by the member for engagement with the groove to move the member relatively to the disk, an element pivoted to the member, the pivot of the element being spaced from the pivot of the member, means actuated by the element for automatically applying the brake to the turn-table when the stylus reaches the end of the groove, and means for automatically adjusting the element irrespective of its initial position relatively to the member.

at. In a device of the character described, a rotating turn-table, a grooved record disk carried by the turn-table, a pivoted member, a stylus carried by the member for engagement with the groove to move the member relatively to the disk in one direction, a lever pivoted to the member at a point spaced from the pivot thereof, a brake cooperating with the turn-table, means for securing the brake in inoperative position, means in the path of the lever and adapted to be engaged and actuated by the lever for automatically releasing the brake whereby the latter is applied to the turntable when the stylus reaches the end of the record groove irrespective of the length of the record groove, means for automatically moving the lever relatively to the member whereby the lever will be in position to engage and operate the brake releasing means when the stylus reaches the end of the record groove, and stationary means for automatically resetting the lever when the member is movedinvthe opposite direction.

5. In a device of the characterdescribed, a rotating turn-table, a grooved record disk carried by the turn-table, a pivoted member, a stylus carried by the member for engagement with the groove to, move the member relatively to the disk in one direction, a lever pivoted to the member at a point spaced from the pivot thereof, a brake cooperating with the turn-table, means for securing the brake in inoperative position, means in the path of the lever and adapted to be engaged and actuated by the lever for automatically releasing the brake whereby the latter is applied to the turn-table when the stylus reaches the end of the record groove irre spective of the length of the record groove, means for automatically arresting the movement of the lever and changing its position relatively to the member whereby the lever will be in position to engage and operate the brake releasing means when the stylus reaches the end of the record groove, and means for automatically restoring the lever to operative position when the member is moved in the opposite direction.

6. In a device of the character described, a rotatable turn-table, a grooved record disk carried on the turn-table, a brake, a lever for locking the brake out of engagement with the turn-table, a rod cooperating with the lever, a pivoted member, a stylus carried by the member for engagement with the groove to move the member and stylus relatively to the disk, a pivoted stop lever in frictional engagement with the member for engagement with the rod to apply the brake and arrest the rotation of the turn-table, a stop adapted to be engaged by the lever, the engagement of the lever with the stop moving the stop lever about its pivot, and means for resetting the stop lever.

7. In a device of the character described, a rotatable turn-table, a grooved record disk carried on the turn-table, a brake, a lever for locking the brake out of engagement with the turn-table, a rod cooperating with the lever, a pivoted member, a stylus carried by the member for engagement with the groove to move the member and stylus relatively to the disk in one direction, a pivoted stop lever in frictional engagement with the member for engagement with the rod to apply the brake and arrest the rotation of the turntable, a stop adapted to be engaged by the lever, the engagement of the lever with the stop moving the stop lever about its pivot, and means for resetting the stop lever by movement in the opposite direction irrespective of the movement of the member in that direction.

8. In a device of the character described,

a rotating turntable, a disk carrying a record groove carried on the turntable, a pivoted member carrying a stylus for engagement with the record groove, whereby the member will be moved across the surface of the disk by such engagement, a lever carried by the member, a brake coope *ating with the turntable, means for applying the brake to the turntable, a trigger for locking the brake out of engagement with the turntable, a rod cooperating with the trigger, an element engaging the rod, said element lying in the path of the lever whereby the engagement of the lever with the element when the member is moved from a point near the center of the disk toward its periphery will engage the element to move the trigger to unlock the brake, the engagement of the lever with the element arresting the relative movements of the lever and member, and a stop for engagement with the lever on its return movement to reset the lever.

9. In a phonograph in combination with a record carrier, a sound-boX-carrying member pivoted for turning about a vertical axis; a spring-actuated brake device for the record carrier; a spring-actuated trigger adapted to engage said brake device to lock it out oi: braking position; means by which the sound-box-carrying member when moving in one direction actuates said trigger to release the brake, said means comprising a member frictionally carried upon a pivot spaced from that of the sound-boX-carrying member, and separate independent springs for actuating the brake and the trigger respectively, and means for automatically adjusting the actuating means on movement of the member in the opposite direction.

10. The combination with a tone arm, a record carrier and means for causing the two to have relative movement for sound reproduction, of means for automatically interrupting the operation of the aforesaid means when the tone arm reaches any predetermined point on the record, comprising a reciprocating member and a member pivoted on the tone arm for adjustment to various set positions, and moved by the tone arm into engagement with said reciprocating member when the tone arm reaches any predetermined position on the record table.

This specification signed and witnessed this 15th day of August, 1916.

FRANK MALOOSAY Witnesses JOHN L. LOTSGH, lVlAX SoHLnMowrrz. 

